JPS56119712A - Humidifying method for blast of blast furnace - Google Patents

Humidifying method for blast of blast furnace

Info

Publication number
JPS56119712A
JPS56119712A JP2164380A JP2164380A JPS56119712A JP S56119712 A JPS56119712 A JP S56119712A JP 2164380 A JP2164380 A JP 2164380A JP 2164380 A JP2164380 A JP 2164380A JP S56119712 A JPS56119712 A JP S56119712A
Authority
JP
Japan
Prior art keywords
blast
temp
hot stove
blower
cold
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2164380A
Other languages
Japanese (ja)
Inventor
Genji Nakatani
Akitoshi Ogoshi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP2164380A priority Critical patent/JPS56119712A/en
Publication of JPS56119712A publication Critical patent/JPS56119712A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B9/00—Stoves for heating the blast in blast furnaces
    • C21B9/16—Cooling or drying the hot-blast

Abstract

PURPOSE:To enhance the thermal efficiency of a hot stove and humidify the blast of a blast furnace with less energy by spraying and evaporating water of ordinary temp. into the cold wind after the compression and temp. rise caused by a blower between the blower and the hot stove. CONSTITUTION:The atmospheric air sucked through a bag filter 1 is sent by a blower 2 into a hot stove 3, and after it is preheated there, it is blasted to a blast furnace 4. At the time of humidifying this blast furnace blast, an ordinary temp. water blow pipe 10 is provided to the blast cooling pipe 5 between the blower 2 and the hot stove 3, and water of ordinary temp. is ejected 8 directly into the cold blast after the compression and temp. rise caused by blower passing through the cooling pipe 5. As a result, the waste of the quantity of heat is eliminate overall and the considerable saving of energy is achieved by making use of the characteristic of the hot stove that the thermal efficiency of the hot stove is higher (higher about 5% per 100 deg. cold blast temp. drop) as the temp. of this cold blast is lower.
JP2164380A 1980-02-25 1980-02-25 Humidifying method for blast of blast furnace Pending JPS56119712A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2164380A JPS56119712A (en) 1980-02-25 1980-02-25 Humidifying method for blast of blast furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2164380A JPS56119712A (en) 1980-02-25 1980-02-25 Humidifying method for blast of blast furnace

Publications (1)

Publication Number Publication Date
JPS56119712A true JPS56119712A (en) 1981-09-19

Family

ID=12060733

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2164380A Pending JPS56119712A (en) 1980-02-25 1980-02-25 Humidifying method for blast of blast furnace

Country Status (1)

Country Link
JP (1) JPS56119712A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5834112A (en) * 1981-08-24 1983-02-28 Nippon Steel Corp Humidifying method of blast furnace blast
JPS5928508A (en) * 1982-08-06 1984-02-15 Sumitomo Metal Ind Ltd Humidification of air to be sent to blast furnace
FR2559785A1 (en) * 1984-02-21 1985-08-23 Arbed METHOD FOR CONTROLLING FLAME TEMPERATURE IN A TANK OVEN

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5834112A (en) * 1981-08-24 1983-02-28 Nippon Steel Corp Humidifying method of blast furnace blast
JPS5928508A (en) * 1982-08-06 1984-02-15 Sumitomo Metal Ind Ltd Humidification of air to be sent to blast furnace
FR2559785A1 (en) * 1984-02-21 1985-08-23 Arbed METHOD FOR CONTROLLING FLAME TEMPERATURE IN A TANK OVEN

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